642-732 Conducting Cisco Unified Wireless Site Survey Exam Set 4

What two factors could cause a post-deployment audit to show a high retransmission rate for the WLAN? (Choose two.)


Options are :

  • Rate shifting
  • CCX compatible clients
  • High RSSI values
  • A,B
  • High SNR values
  • CRC errors

Answer : A,B

Which three things do you need to consider prior to performing a wireless site survey? (Choose three.)


Options are :

  • B,D,E
  • The time required to survey each potential AP location
  • The time required to assess application server locations at the customer facility.
  • The type of wireless survey tools required to perform the site survey.
  • The time required to assess customer WLAN density and throughput requirements.
  • The time required to utilize the design mode in Cisco WCS to prepare a preliminary WLAN design to reduce on-site survey time.
  • The time required to acquire any additional infrastructure components

Answer : B,D,E

200-125 Cisco Certified Network Associate Practice Exam Set 11

Which three components and tasks should be considered while planning the site survey? (Choose three.)


Options are :

  • Determine radio spectrum and channel allocation
  • Determine the customer applications that the network will support
  • Determine project stakeholders
  • Schedule customer end user interviews
  • Determine AP and controller placement
  • Determine the project scope, type of deployment, timeline, scale, budget, and users
  • Determine customer training requirements
  • A,B,E

Answer : A,B,E

300-320 Designing Cisco Network Service Architectures Exam Set 1

Which option will allow the maximum 2.4 GHz channel usage for a survey and voice deployment in the ETSI domain?


Options are :

  • 1, 6, 11
  • 1, 6, 11, 14
  • 1, 6, 9, 14
  • 1, 5, 9, 13

Answer : 1, 6, 11

Which two issues do access and backhaul radios experience in mesh networks? (Choose two.)


Options are :

  • B,D
  • The access radio has to connect to two or several points.
  • Backhaul radios are a bottleneck for throughput.
  • The access cell usually covers more area at ground level that may have more sources of reflection and interference.
  • RAPs help MAPs avoid coverage holes.
  • The access cell radio range is larger than the backhaul radio range, which causes the backhaul cell radio to suffer from more interference.

Answer : B,D

The customer had a 802.11b/g WLAN site survey and installation two years ago with the final service performing as expected. Since that time, the customer has experienced modest customer growth while maintaining employee headcount. New wireless applications are being evaluated along with a possible temporary headcount increase, but the current WLAN performance has noticeable performance degradation. What is the most likely cause of the WLAN performance problems?


Options are :

  • The customer has expanded their shipping capacity by 50%.
  • They have added a second microwave to the break room.
  • A new coffee shop with a wireless hotspot has opened across the street.
  • Employees are now using their smart phones and tablets in the office.

Answer : Employees are now using their smart phones and tablets in the office.

100-105 Net Cert Interconnecting Cisco Networking Exam Set 8

What are the most appropriate channels for an 802.11a/n VoWLAN survey and deployment in the FCC domain?


Options are :

  • 23 channels of UNII-1, UNII-2, UNII-2 extended, and UNII-3
  • 8 channels of UNII-1, and UNII-3
  • 24 channels of UNII-1, UNII-2, UNII-2 extended, UNII-3, and ISM
  • 8 channels of UNII-1, and UNII-2
  • 4 channels of UNII-1
  • 15 channels of UNII-2, and UNII-2 extended

Answer : 8 channels of UNII-1, and UNII-3

Which two statements best describe the Fresnel zone related to an outdoor RF point-to-point link? (Choose two.)


Options are :

  • multiple elliptical areas surrounding an RF line of sight
  • single elliptical area surrounding an RF line of sigh
  • extends horizontally
  • extends vertically
  • extends three-dimensionally
  • B,E

Answer : B,E

Which item is more of an issue to outdoor wireless mesh deployment than indoor?


Options are :

  • Delay spread
  • Scattering
  • Reflection
  • Absorption

Answer : Delay spread

200-105 Inter connecting Cisco Networking Devices Exam Set 1

What is the recommended method to protect a wireless outdoor bridge from lightning?


Options are :

  • Install a one-meter segment of fiber-optic cable with a copper-to-fiber-optic transceiver to isolate the wireless outdoor bridge from the network cable plant.
  • Install the wireless outdoor bridge in a grounded NEMA enclosure.
  • Install a fiber-optic link between the wireless outdoor bridge and the antenna.
  • Install a protection frame in the copper portion of the network cable plant to act as a lighting arrestor.
  • Install the wireless outdoor bridge inside a building if possible and only have the antenna outside.

Answer : Install a one-meter segment of fiber-optic cable with a copper-to-fiber-optic transceiver to isolate the wireless outdoor bridge from the network cable plant.

When planning to perform a customer WLAN site survey, which three components and tasks should be considered? (Choose three.)


Options are :

  • Determine AP and controller placement
  • Schedule customer end user interviews
  • Schedule a meeting with the customer to discuss the Statement of Work
  • Determine customer training requirements
  • Determine radio spectrum and channel allocation
  • Consider travel, access, and equipment requirements necessary to perform the site survey
  • Complete the Pre-Survey Customer Questionnaire
  • B,D,E
  • Schedule initial customer meeting and pre-survey walk through events

Answer : B,D,E

You have a customer that is building a new campus of four 3-story buildings that you have just completed the site survey for. The customer is interested in the amount of rack space they will need to allocate in either the building MDF or in the data center for controllers. Each building is going to require 75 APs to support voice and data. How should the controllers be deployed to provide the least number of controllers, the highest redundancy, and the easiest management?


Options are :

  • Use the distributed deployment method in each building MDF with the N + N redundancy method.
  • Use the centralized deployment method in the data center with the N + 1 redundancy method.
  • Use the centralized deployment method in the data center with the N + N + 1 redundancy method.
  • Use the distributed deployment method in each building MDF with the N + 1 redundancy method.
  • Use the centralized deployment method in the data center with the N + N redundancy method.
  • Use the distributed deployment method in each building MDF with the N + N +1 redundancy method.

Answer : Use the centralized deployment method in the data center with the N + N + 1 redundancy method.

100-105 Net Cert Interconnecting Cisco Networking Exam Set 3

You have a multinational customer that would like you to perform a wireless site survey for a new manufacturing facility in Singapore. They have had a local vendor install a point-to-point wireless bridge link between two buildings 1 km apart. The ground between the buildings is flat but because facilities are in the mountains, dense fog is an issue. There are no line of sight issues between the buildings. The link is experiencing errors and throughput issues. Currently the two radios are set to operate at 2.4 GHz and the transmit power is set to 7 dBm with 7 dBm antennas. What do you need to take into consideration when performing the site survey for this link?


Options are :

  • Change the radio power to 13 dBm.
  • Change the radio power to 29 dBm.
  • Change the radio power to 20 dBm and replace with a 16 dBm antenna.
  • Change the radio power to 17 dBm.

Answer : Change the radio power to 13 dBm.

Which option allows the maximum 2.4-GHz channel usage for a survey and data deployment in the ETSI domain?


Options are :

  • 1, 6, 11, 14
  • 1, 5, 9, 13
  • 1, 6, 9, 14
  • 1, 6, 11

Answer : 1, 5, 9, 13

Given an AP that can transmit at 100 mW and the client at 40 mW, which power setting should be used for a site survey?


Options are :

  • 60 mW
  • 10 mW
  • 40 mW
  • 20 mW
  • 80 mW
  • 100 mW

Answer : 20 mW

300-320 Designing Cisco Network Service Architectures Exam Set 1

In post-deployment testing you have identified an area where there is a substantial rate-shift issue causing problems with the existing Cisco 7921 phones. How might you resolve this issue?


Options are :

  • Change VoWLAN to 7925 phones.
  • Reduce the power level of the AP so that roaming occurs before the client experiences the substantial rate shift.
  • Increase the AP power level to maintain higher throughput further away from the AP.
  • Increase client RSSI, SNR, and retry values to maintain connectivity to the original AP for as long as possible.

Answer : Reduce the power level of the AP so that roaming occurs before the client experiences the substantial rate shift.

When using WCS 7.0 to calibrate a floor in a facility, which two factors are common to the point and linear calibration methods? (Choose two.)


Options are :

  • You will only need to combine the linear and point collection methods in special spaces like hallways.
  • You must go through each collection point at a speed that isn't too fast to collect too much information nor too slow which limits the amount of information collected.
  • If one collection point in the linear or point collection method is missed, you have to start at the beginning again
  • You must sample both the 802.11a/n and the 802.11b/g/n network separately
  • A,B
  • Rotating the client is only required during the point collection process because the linear method is a slowly moving process

Answer : A,B

The customer has an existing 802.11b/g network with Cisco 2500 controllers. The customer would like to migrate to an 802.11a/b/g/n WLAN. Which network infrastructure issue might impact client performance in this proposed controller-based solution?


Options are :

  • The additional load placed on a RADIUS server by 802.1X authentication traffic on the first work day of each week.
  • A bottleneck may occur if the access switch port to the AP only supports 100 Mb/s full duplex.
  • The added delay WDS imposes on the client when they roam from one AP to another.
  • The additional application load placed on servers by 802.11n clients.

Answer : A bottleneck may occur if the access switch port to the AP only supports 100 Mb/s full duplex.

210-260 Implementing Cisco Network Security Practice Exam Set 6

What is the result of a Cisco 1250 AP deployed for 802.11a/b/g/n using optimized power (16.8 W) with software version 7.0?


Options are :

  • One spatial stream per radio
  • Reduced power on 2.4 GHz radio only
  • Reduced power on both radios
  • Reduced power on 5 GHz radio only
  • One spatial stream on 2.4 GHz and two spatial streams on 5 GHz
  • One spatial steam on 5 GHz and two spatial streams on 2.4 GHz

Answer : Reduced power on 2.4 GHz radio only

Mesh APs are commonly mounted alongside a pole, meaning they are both vertically aligned and the pole could partially block the mesh AP RF signal. What is the maximum degree angle to allow for blockage of the antenna field of view?


Options are :

  • 15 degrees
  • 10 degrees
  • 2 degrees
  • 5 degrees

Answer : 5 degrees

Which two basic factors have the most influence on the size of the Fresnel zone of an outdoor RF point-to-point link? (Choose two.)


Options are :

  • frequency
  • horizontally polarized antenna
  • beamwidth
  • distance
  • vertically polarized antenna
  • B,C

Answer : B,C

200-125 Cisco Certified Network Associate Practice Exam Set 4

Which two basic characteristics would be needed from antennas used for survey and deployment in various indoor situations? (Choose two.)


Options are :

  • Highest gain
  • Vertically polarized
  • Horizontally polarized
  • Least cost
  • Aesthetically fitting
  • Largest beam width
  • B,C

Answer : B,C

You are working with a client that owns a six-story building in Charlotte, N.C. They occupy the bottom three floors, and currently have a wired LAN. They have contacted you to perform a WLAN site survey of their facility. Which three issues do you need to take into consideration before performing the site survey? (Choose three.)


Options are :

  • Protocol type required, client types in place, and client density?
  • How many other organizations occupy the building?
  • B,C,D
  • How much WLAN experience does the customer IT staff have?
  • How many equipment closets do they have per floor and does the infrastructure all run back to a central location?
  • Does the customer facility have a multistory atrium or lobby?
  • Is WLAN coverage required in the elevators?
  • How much signal bleedthrough is permissible between floors?

Answer : B,C,D

Which piece of information gathered during a WLAN site survey should be included in the customer report?


Options are :

  • Analysis of fiber-optic backbone infrastructure.
  • Analysis of server location and applications supported.
  • Output from Cisco WCS Location Quality Inspector.
  • Output from Cisco WCS Planning Mode Tool.
  • Output from Cisco WCS VoWLAN Voice Readiness Tool.

Answer : Output from Cisco WCS Planning Mode Tool.

Cisco Data Center Architecture Set 5

What is the vertical height that a MAP should not exceed for proper deployment?


Options are :

  • 55 ft
  • 15 ft
  • 30 ft
  • 45 ft

Answer : 30 ft

Customer requirements and a WLAN site survey require a Cisco 1250 AP operating at full 802.11a/b/g/n located approximately 150 meters from the closest IDF. What is the best solution to provide wireless coverage to this portion of the customer's facility?


Options are :

  • At the AP location, install a power drop and a Cisco AIR-PWRINJ4 power adapter for the Cisco 1250. Connect the Cat 5 cable to the AP from the IDF.
  • At the AP location, install a local power drop and local power supply for the Cisco 1250. Connect the AP through a pair of fiber-optic-to-copper transceivers back to the access layer switch to provide data access.
  • Install an external Cisco Mid-Span 802.3af power injection panel in the same rack as the access switch to extend the driven distance of the structured cable plant.
  • At the AP location, install a power drop and a Cisco Aironet Power Injector Media Converter (AIR-PWRINJ-1000AF) to power and the Cisco 1250 and extend the Cat 5 link.
  • At the AP location, install a power drop and a Cisco Aironet Power Injector Media Converter (AIR-PWRINJ-FIB) for the Cisco 1250. Then connect a Cat 5 cable from the AP to a fiber-optic-to-copper transceiver which connects to a fiber link to the IDF. At the access switch, connect the fiber cable from the AP location to a fiber-optic port on the switch.

Answer : At the AP location, install a local power drop and local power supply for the Cisco 1250. Connect the AP through a pair of fiber-optic-to-copper transceivers back to the access layer switch to provide data access.

After you have run the VoWLAN Voice Readiness Tool in WCS 7.0, you see there are potential problem areas in your facility. Which two actions will help you troubleshoot these coverage areas? (Choose two.)


Options are :

  • Set the AP power level to match the VoWLAN client to avoid one-way audio.
  • You need to edit the RSSI values for Cisco IP Phones so the 802.11b/g/n radios display the region map properly
  • To prevent one-way audio, set the AP power levels to half the power of the client. This will ensure proper radio coverage
  • Verify the green, yellow, and red regions in the RF environment only if the floor has not been calibrated.
  • D,E
  • Determine if the coverage area will have enough APs to support the VoWLAN client, since all APs must have a Tx power level that does not exceed that of the client.

Answer : D,E

210-065 Implementing Cisco Video Network Devices Exam Set 2

Which wireless tool would be most useful in planning a WLAN solution prior to performing a site survey?


Options are :

  • Air Magnet Survey
  • Ekahau Survey
  • Cisco Spectrum Expert
  • Cisco WCS
  • Air Magnet Wi-Fi Analyze

Answer : Cisco WCS

During the site survey kick-off meeting with your customer, they ask why you need to verify the existing network infrastructure. Which two reasons do you give them? (Choose two.)


Options are :

  • You need to verify that there are sufficient switch ports to support the new WLAN connections.
  • Depending on the type of APs that are planned for, the deployment may require different types of PoE to be supplied by the LAB switches.
  • C,D
  • You need to verify that the switches the WLAN components will connect to can supply 802.3af inline power, and that they have sufficient ports to support all the new WLAN devices.
  • You need to verify the make, model, and software versions of all the equipment that will connect to the WLAN components in order to ensure compatibility.
  • You need to verify that the equipment the WLAN components will connect to has sufficient memory capacity to support the additional WLAN connections.

Answer : C,D

How would clients react to a controller configuration that utilized unsupported channels?


Options are :

  • Unsupported channels can cause coverage holes for clients as well as limit their connectivity
  • Unsupported channels would have no impact on clients. The user would simply need to roam to a supported channel.
  • Unsupported channels would be ignored by clients.
  • Unsupported channels are not configurable on the controller, thus there would be no impact on clients.

Answer : Unsupported channels can cause coverage holes for clients as well as limit their connectivity

ICND1 100-105 Certification Practice Tests Set 4

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